Staff Security Architect for AI Infrastructure

reflectionai; New York, California (NY, MO); On-site; USD 180,000 - 260,000; Full time

Benefits offered by this job

Top-tier compensation

Stock options

Health & wellness

Meals provided

Paid parental leave

Unlimited PTO (US)

Job summary

Reflection seeks a Senior MTS for Technology & Security Engineering to architect and operate the security foundation across our multi-cloud research infra, protecting model weights, training data, and GPU capacity.

The role blends security engineering with research operations, requiring hands-on depth and executive leadership to represent security posture to auditors and customers while negotiating vendor risk.

Qualifications

• 7+ years of deep engineering experience at high-valuation companies, or in defense-grade environments.
• Battle-tested technical leadership with a track record of building and operating security engineering functions at scale.
• Experience supporting SOC 2, ISO 27001, FedRAMP, ISO 22237, ISO 22301, NIST CSF, customer audits, and enterprise security reviews.
• Experience leading vendor risk, procurement security reviews, and legal contract negotiations.

Responsibilities

• High-Performance End User Compute (EUC): Design and manage a highly resilient corporate device fleet across Linux, macOS, Windows and GPUs.
• Securing the Research & Training Boundary: Architect cloud-native security controls across multi-cloud environments with multi-million-dollar GPU clusters.
• Phishing-Resistant Zero-Trust Access: Implement continuous, context-aware authorization using mesh networks and hardware-backed authentication.
• Security as Code (SaC): Ensure infrastructure and IAM policies are declared in code and validated in CI/CD pipelines.
• Behavioral Detection Engineering: Build telemetry pipelines and detect post-exploitation techniques at scale.
• Compliance, Audit & Vendor Risk: Support audits and lead vendor risk assessments and security contract negotiations.

Skills

Linux

macOS

Kubernetes

Public cloud

IAM governance

Zero-trust

Security engineering

Security automation

Detection & response

Audits & compliance

Tools

Terraform

Pulumi

Cloudflare One

Tailscale

Job description

Reflection seeks a Senior MTS for Technology & Security Engineering to architect and operate the security foundation across our multi-cloud research infra, protecting model weights, training data, and GPU capacity.

The role blends security engineering with research operations, requiring hands-on depth and executive leadership to represent security posture to auditors and customers while negotiating vendor risk.